A Caltech Library Service

The Infrared Imaging Spectrograph (IRIS) for TMT: instrument overview

Larkin, James E. and Wright, Shelley A. and Chisholm, Eric M. and Andersen, David and Dekany, Richard G. and Dunn, Jennifer S. and Hayano, Yutaka and Kupke, Renate and Smith, Roger and Suzuki, Ryuji and Weber, Robert W. and Zhang, Kai (2020) The Infrared Imaging Spectrograph (IRIS) for TMT: instrument overview. In: Ground-based and Airborne Instrumentation for Astronomy VIII. Proceedings of SPIE. No.11447. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 114471Y. ISBN 9781510636811.

[img] PDF - Published Version
See Usage Policy.

[img] PDF - Submitted Version
See Usage Policy.


Use this Persistent URL to link to this item:


IRIS is a diffraction limited instrument designed for first light of the Thirty Meter Telescope (TMT). It combines a nearinfrared integral field spectrograph (lenslet array and mirror slicer) and a wide-field imager with platescales as small as 4 mas. The project is nearing the end of its final design phase and will soon be ready for fabrication. Our team has created a wide variety of prototypes and design solutions for this advanced instrument. While many challenges like atmospheric dispersion correction and saturation are particularly acute due to the telescope diameter, many others arise from the large format detector arrays and wide range of science goals. We’ll present the overall design, results from our prototyping activities and discuss the astrophysical opportunities.

Item Type:Book Section
Related URLs:
URLURL TypeDescription Paper
Larkin, James E.0000-0001-7687-3965
Wright, Shelley A.0000-0003-1034-8054
Dekany, Richard G.0000-0002-5884-7867
Hayano, Yutaka0000-0003-4937-4233
Smith, Roger0000-0001-7062-9726
Zhang, Kai0000-0002-9808-3646
Additional Information:© 2020 Society of Photo-Optical Instrumentation Engineers (SPIE). The TMT Project gratefully acknowledges the support of the TMT collaborating institutions. They are the California Institute of Technology, the University of California, the National Astronomical Observatory of Japan, the National Astronomical Observatories of China and their consortium partners, the Department of Science and Technology of India and their supported institutes, and the National Research Council of Canada. This work was supported as well by the Gordon and Betty Moore Foundation, the Canada Foundation for Innovation, the Ontario Ministry of Research and Innovation, the Natural Sciences and Engineering Research Council of Canada, the British Columbia Knowledge Development Fund, the Association of Canadian Universities for Research in Astronomy (ACURA), the Association of Universities for Research in Astronomy (AURA), the U.S. National Science Foundation, the National Institutes of Natural Sciences of Japan, and the Department of Atomic Energy of India.
Group:Thirty Meter Telescope
Funding AgencyGrant Number
TMT partner institutionsUNSPECIFIED
Subject Keywords:Infrared Imaging, Infrared Spectroscopy, Spectrographs, Adaptive Optics
Series Name:Proceedings of SPIE
Issue or Number:11447
Record Number:CaltechAUTHORS:20201222-144909425
Persistent URL:
Official Citation:James E. Larkin, Shelley A. Wright, Eric M. Chisholm, David Andersen, Richard G. Dekany, Jennifer S. Dunn, Yutaka Hayano, Renate Kupke, Roger Smith, Ryuji Suzuki, Robert W. Weber, and Kai Zhang "The Infrared Imaging Spectrograph (IRIS) for TMT: instrument overview", Proc. SPIE 11447, Ground-based and Airborne Instrumentation for Astronomy VIII, 114471Y (13 December 2020);
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:107261
Deposited By: Tony Diaz
Deposited On:22 Dec 2020 23:04
Last Modified:16 Nov 2021 19:01

Repository Staff Only: item control page